JPH0471734A - Turret punch press - Google Patents

Abstract

PURPOSE:To hold more dies and to improve the productivity by setting the area for holding the dies in adjacent to the turret, providing the die automatic changing device in freely reciprocatively between them and setting the tooling tower in adjacent to the above area for holding the dies. CONSTITUTION:The die holding area 27 to hold plural dies adjacent to the turret 9 of the turret punch press 1 is set. The die automatic exchanging device 71 for taking out the die of the die holding area and mounting it to the above turret 9 is set in freely reciprocatable between the position corresponding to the die holding area and the position corresponding to the turret. Further, the tooling tower 129 is set is adjacent to the die holding area, executes to receive the die-set receiving part mounted to the die holding are in the above tooling tower or to pull the die-set receiving part in the die holding area. Therefore, even if during working the work, the work for preparing the die and the maintenance, etc., can be executed at the tooling tower, etc., the productivity can be improved.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a turret punch press, and more specifically, the present invention relates to a turret punch press, and more specifically, to remove a mold set mounted on a turret and remove the mold set to be used next. This invention relates to a turret punch press equipped with an automatic die changer for mounting a die set on a turret.

(Prior Art) Conventionally, in a turret punch press, an automatic mold exchange device has been used to remove a mold mounted on a turret and to mount a mold to be used next on the turret.

As shown in FIG. 10, for example, this automatic die changer has a tool stockyard 207 adjacent to upper and lower turrets 203 and 205 that are rotatably mounted on a frame 201 of a turret punch press. . This tool stock yard 207 and the upper and lower turrets 20
An automatic mold exchange device 209 that moves between the molds 3 and 205 is provided. Note that in this conventional example, the turrets 203, 2
This is an example of replacing three molds in 2005.

(Problems to be Solved by the Invention) By the way, the above-mentioned conventional mold changing device has problems when trying to increase the number of molds held in the tool stockyard 207.
As shown in FIG. 10, the dimensions become larger, and therefore the movement stroke S of the automatic die changer 209 also becomes larger.

Therefore, there are problems in that the time required for automatic mold exchange becomes longer and the dimension of the stroke S becomes longer, leading to an increase in space and cost. Furthermore, since the automatic die changer 209 is located in front of the tool stockyard 207 while punching a workpiece, there is a problem in that the die cannot be set.

The purpose of the present invention is to provide a turret punch press that can hold more molds, enable mold setup even during workpiece processing, and improve productivity in order to improve the above-mentioned problems. be.

[Structure of the Invention] (Means for Solving the Problem) In order to achieve the above object, the present invention provides a turret punch press that is rotatably equipped with a turret that supports a large number of molds, and a punch press that is adjacent to the turret. A mold holding area for holding a plurality of molds is provided, and an automatic mold changing device for taking out the molds from this mold holding area and mounting them on the turret is arranged at a position corresponding to the mold holding area. a tooling tower provided with a plurality of storage units adjacent to the mold holding area and reciprocally movable between a position corresponding to the turret, and a mold set storage unit installed in the mold holding area; A turret punch press was constructed by providing a turret punch press that can be stored or exchanged in the tooling tower.

(Function) By employing the turret punch press of the present invention, a mold holding area for holding a plurality of molds is provided adjacent to the turret of the turret punch press. An automatic mold exchange device for taking out the mold in the mold holding area and mounting it on the turret is provided so as to be able to freely reciprocate between a position corresponding to the mold holding area and a position corresponding to the turret. .

Furthermore, a tooling tower is provided adjacent to the mold holding area, and a mold set storage section attached to the mold holding area is stored in the tooling tower, and a plurality of mold sets stored in the tooling tower are stored. or pulling the storage section into the mold holding area.

Thus, the molds can be set when the mold set storage section is stored in the tooling tower, and since the tooling tower is provided, a large number of molds are held.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Since the structure of the turret punch press is already known,
Briefly explain. Referring to Figures 1 and 2,
The turret punch press 1 includes a concave frame 3, and a turret 9 consisting of a rotatable upper turret 5 and a lower turret 7 is supported by the concave frame 3 at the center of the portal frame 3. Molds consisting of a plurality of punches and dies are mounted on the circumferences of the upper turret 5 and the lower turret 7 so as to face each other.

A machining position 11 is provided on the left side of the turret 9, and a mold selected from the molds is indexed to this machining position 11, and is driven by a drive device provided on the upper frame of the concave frame 3. By vertical movement of the striker provided above the processing position, the punch and die cooperate to perform punching at a desired position of the workpiece W positioned at the processing position.

A fixed center table 13 is provided at the lower part of the gate-shaped frame 3.
A movable table 15 that is movable in the Y-axis direction (left-right direction in FIG. 1) is provided on both sides of the table 3. When this movable table 15 is moved in the Y-axis direction, it is guided by a plurality of guides 17 extending in the Y-axis direction and is moved smoothly.

A carriage base 1 is mounted on the left end of the movable table 15.
9 is provided extending in the X-axis direction (vertical direction in FIG. 1), and this carriage base 19 is provided with a workpiece moving and positioning device 21. That is, the carriage base 19 is provided with a carriage 23 that is movable in the X-axis direction, and a plurality of work clamps 25 for gripping the work W are attached to the carriage 23.

With the above configuration, the movable table 15 is moved in the Y-axis direction, and the carriage 23 is moved in the X-axis direction, so that the workpiece W gripped by the workpiece clamp 25 is moved in the X-axis and Y-axis directions. The desired position to be processed is positioned at the processing position and punched.

A workpiece moving and positioning device 21 is provided on the left side with the turret 9 in the center, and a mold holding area 27 is provided in the portal frame 3 on the right side opposite to the workpiece moving and positioning device 21. .

In this mold holding area 27, a plurality of mold sets 29 consisting of an appropriate number of punches and dies are arranged at appropriate intervals in the Y-axis direction, and a mold set storage part 31 is also arranged vertically facing each other. is provided. Furthermore, the mold set 29 disposed in the mold set storage section 31 is configured to be movable in the Y-axis direction and the Z-axis direction (vertical direction in FIG. 2).

More specifically, referring to FIGS. 3 to 7,
The frame 33 of the mold holding area 27 is the turret punch press 1
It is fixed to the gate-shaped frame 3 with bolts or the like. The mold set storage section 31 in which the mold sets 29 are stored in a plurality of rows in a plurality of stages is composed of a base section 35 and a mold set storage section main body 37. (See FIG. 5) The base portion 35 is provided with a plurality of (two in this embodiment) rails 39 extending perpendicularly to the pedestal 33, and a plurality of rails 39 are provided on the back surface of the base portion 35. For example, the LM guide 41 is engaged. A threaded rod 47 is vertically mounted from a motor 43 provided on the upper part of the pedestal 33 via a rotation transmission device 45, and a nut 49 screwed onto the threaded rod 47 is fixed to the base portion 35. This base portion 35 is positioned by a dog 51 provided on the base portion 35 for positioning during vertical movement.

With the above configuration, by driving the motor 43, rotation is transmitted to the threaded rod 47 via the rotation transmission device 45, and the base portion 35 is moved up and down via the nut 49 screwed onto the threaded rod 47. (See Figure 6) Mold set storage main body 37
A plurality of (two in this embodiment) rails 53 are provided horizontally in the Y-axis direction on the surface of the base portion 35, and a plurality of, for example, LM guides 55 that engage with the rails 53 are used to store mold sets. It is provided on the back surface of the main body 37.

As shown in FIG. 3, a connecting rod 57 is provided on the back side of the mold set storage main body 37, and the robot is fixed to the tip of a piston rod 61 of a hydraulic cylinder 59 provided in a touring tower, which will be described later. The hand 63 can engage and disengage the connecting rod 57. Further, as shown in FIG. 5, the mold set storage main body 37 is attached to the base portion 35 by, for example, a shot bottle 65 having a known configuration.
is positioned against.

With the above configuration, the mold set storage main body 37 is normally locked and positioned on the base part 35 by the shot bin 65, but when the mold set storage main body 37 is stored in a touring tower (described later) or replaced. releases the engagement of the shot pin 65. And robot hand 63
is activated to couple with the connecting rod 57, and by operating the cylinder 59, the mold set storage main body 37 can be pulled out horizontally from the base portion 35.

In addition, when inserting the mold set storage main body 37 into the base part 35 from the tooling tower side, it is possible by performing the above-mentioned reverse operation, and after inserting the mold set storage main body 37 into the base part 35. The robot hand 63 is positioned by the shot pin 65, and the piston rod 61 is retracted by releasing the robot hand 63.

Referring again to FIGS. 1 and 2, the circumference of the turret 9 consisting of the upper turret 5 and the lower turret 7 is cut into, for example, a substantially U-shape in order to mount a mold set 29 thereon. A plurality of mold set mounting areas 67 (three in this embodiment) are provided at appropriate intervals. However, in FIG. 1, one of the mold set mounting areas 67 is a mold exchange position 69.

This mold exchange position 69 and the automatic mold exchange device 7 that is movable in the X-axis and Y-axis directions are located on the front side of the mold set storage section 31.
1 is provided, and this mold automatic exchange device 71 is provided with:
At least the same mold mounting parts as the plurality of mold set mounting areas 67 are provided with nozzings 73 (four in this embodiment).

More specifically, referring to FIGS. 1, 2, and 8, the lower frame 75 of the turret punch brace 1 includes:
In FIG. 1, a plurality of guide rails 77 extending in the Y-axis direction are provided in parallel, and each housing 73 is integrally provided to the guide rails 77 via a plurality of seven guide members.

A ball screw 83 is rotatably supported on bearings 81 provided on both sides of the lower frame 75, and a nut member 85 is screwed into the ball screw 83. This nut member 85 is attached to the lower part of the housing 73.

With the above configuration, when the drive motor (not shown) is driven, the ball screw 83 rotates, so the housing 73 is moved in the Y-axis direction via the nut member 85. Note that when the housing 73 is moved in the Y-axis direction, it is guided by the guide rail 77, so that it can be moved smoothly.

A plurality of guide rails 87 are provided on the bottom plate 73U of the housing 73 at appropriate intervals and extend in the X-axis direction. Each guide rail 87 has a plurality of guide members 8.
An X-axis gear ledge 91 is provided via 9.

The right side wall 73 in FIG. 8 of the housing 73
An X-axis peripheral cylinder 93 is attached to F, and this
The tip of a piston rod 95 attached to the circumferential cylinder 93 is attached to the upper right wall of the X-axis circumferential carriage 91.

With the above configuration, when the X-axis peripheral cylinder 93 is operated,
The X-axis gear ledge 91 is moved in the X-axis direction via the piston rod 95. In addition, the X-axis gear ledge 9
1 is moved in the X-axis direction, it is guided by the guide rail 87 and moved smoothly.

Each housing 73 is provided with a lock release device fif 97, and the X-axis gear ledge 91 is provided with a mold holding portion 99 for holding a mold set. That is, as shown in FIG. 8, the locking release device 97 includes locking members 101P and 10ID extending in the X-axis direction on both upper and lower sides of each housing 73 via guide members (not shown). This locking member 101P,
101D is the connecting member 1 at the right end in FIG.
They are connected by 03.

The right side wall 7 in FIG. 8 of each of the housings 73
An unlocking cylinder 105 is provided on the 3rd floor.
This unlocking cylinder 105 has a piston rod 10.
7 is installed. The tip of this piston rod 107 is attached to the connecting member 103.

With the above configuration, when the unlocking cylinder 105 is operated, the locking members 101P and 101D connected to the Tee coupling member 103 via the piston rod 107 are moved in the X-axis direction. In addition, the locking members 101P, l0I
When D is moved in the X-axis direction, each guide member is guided along each housing 73.

As shown in FIG. 8, the nine mold holding parts include holding bars 109 that hold a mold set at the top and bottom of the left side of the X-axis gear ledge 91 in FIG. , a chuck device 111P is provided at the tip of each holding bar 109.

111D is installed. This chuck device 111
P, llID has a structure similar to a well-known collet chuck.

Each of the holding bars 109 is integrated with a connecting bar 113 that protrudes to the right within each X-axis gear range 91 in FIG. 8, and each connecting bar 113 is connected by a connecting member 115. A holding cylinder 117 is provided in each of the X-axis gear ledges 91, and this holding cylinder 117
The piston rod 1 is at the tip of the piston rod (the right end marked A in Figure 8).
19 is attached, and the tip of the piston rod 119 is attached to the connecting member 115.

With the above configuration, when the holding cylinder 117 is operated, the piston rod 119, the connecting member 115, the connecting bar 1
The chuck device 111P and llID are moved in the X-axis direction via the chuck 13.

A plurality of mold set mounting areas 67 provided on the upper turret 5 and lower turret 7 of the turret 9 are equipped with replaceable mold sets.

More specifically, as shown in FIG. 8, a mold base 121 (also referred to as a mold holder) equipped with a punch P is mounted in a mold set mounting area 67 of the upper turret 5. It can be installed horizontally from the right side or removed. Similarly, in the lower turret 7, a mold base 123 with a die P mounted thereon can be horizontally mounted or removed from the right direction in FIG. 8 in the mold set mounting area 67.

Note that the mold bases 121 and 123 are the upper and lower turrets 5.
7 and the structure in which the punch P and die D are mounted on the mold bases 121 and 123 are already known, and detailed explanations thereof will be omitted. Further, reference numerals 125 and 127 are holding holes into which the chuck devices 111P and llID are inserted, and the chuck devices 11
1P.

111D is inserted, holds the mold bases 121, 123, and simultaneously pulls them out from the upper and lower turrets 5.7, or attaches them thereto.

Next, the mold set 29 is taken out from the mold set storage section 31 and mounted on the mold set mounting area 67 of the turret 9 located at the mold exchange position 69, or the mold set 29 is moved to the mold exchange position 69. The operation of replacing a mold by removing it from a certain mold set mounting area 67 and storing it in the mold set storage section 31 will be explained.

First, the housing 73 of the automatic mold exchange device 71 is moved to the right in the Y-axis direction in FIG. 1 and positioned at a required position in the mold set storage section 31. Then, the X-axis circumferential cylinder 93 shown in FIG.
1 toward the mold set storage section 31, and further operates the holding cylinder 117 to chuck the chuck device 111P,
111D moves upward in the X-axis direction in FIG. . It is then returned to its original position.

Next, the housing 73 is moved to the left in the Y-axis direction in FIG.
3, but the leftmost housing 73 in FIG.
is empty. This empty housing 73 is moved to the mold exchange position 6.
9, the X-axis peripheral cylinder 93 is operated to move the X-axis gear ledge 91 to the left in FIG. 8, and when it comes near the turret 9, it is stopped.

Next, when the locking release cylinder 105 is operated, the locking members 101P and 10ID are released from the upper turret 5 and the lower turret 7.
When the mold bases 121 and 123 are inserted into the upper turret 5 and the lower turret 7, respectively, the engagement members (not shown) are disengaged, and the mold bases 121 and 123 become free with respect to the upper turret 5 and the lower turret 7, respectively.

After that, the holding cylinder 117 is operated to remove the holding holes 125 and 127 provided in the mold bases 121 and 123.
Chuck devices 111P and 111D are inserted into the mold bases 121 and 123 to hold the mold bases 121 and 123, respectively. In this state, the locking member 1
By moving 01P and 10ID to the right in FIG. 8 and returning them to their original positions, the mold bases 121 and 123 of the mold set 29 are removed from the mold set mounting area 67.

Next, the housing 73 is moved slightly in the Y-axis direction in FIG. 1, the housing 73 holding the mold set 29 is positioned at the mold exchange position 69, and the After moving to the left in the axial direction, the lock release cylinder 105 is activated to release the mold set 29.
is inserted into the mold set mounting area 67.

With the mold set 29 inserted into the mold set mounting area 67, the holding cylinder 117 is operated, the chuck devices 111P and 11D are pulled out from the holding holes 125° 127, and the unlocking cylinder 105 is operated, The locking members 101P and 10LD are moved to the right in FIG. The mold set 29 is set in the mold set mounting area 67.

In the manner described above, rotate the upper turret 5 and lower turret 7 to move another mold set mounting area 67 to the mold exchange position 169.
After indexing, the automatic mold exchange device 71 is operated to replace the mold set 2 set in the mold set mounting area 67.
9 is removed, and the other mold sets 29 mounted on the housing 73 are sequentially mounted on the mold set mounting area 67.

In this way, since the automatic mold exchange device 71 is equipped with at least the same number of housings 73 as mold mounting parts as the plurality of mold set mounting areas 67 provided on the turret 9, the plurality of mold sets 29 Since the molds can be removed and replaced all at once, the time required for changing molds for one process can be significantly shortened.

Next, the tooling tower 129 is provided adjacent to the mold holding area 27, as shown in FIGS. 1, 2, and 3. The touring tower 129 has a rotary disk 133 mounted on a base 131, and although not shown, the rotary disk 133 is rotatably provided via a rotation transmission member from a drive source such as a motor, and is indexed to a predetermined position by stop position control. Stop.

A plurality of sheets (in this embodiment, three sheets are arranged radially on the rotary disk 133)
A support plate 135 of
5 is provided on the rotary disk 133 via a locking member 137 provided with a dovetail groove, for example, and the locking member 137 is connected to a fluid pressure-operated cylinder 139 that is locked to the rotary disk 133. The amount can be moved freely.

Further, the support plate 135 includes a rail 53 for horizontally moving the mold set storage main body 37 of the mold holding area 27 described above, and a plurality of connected rails 141 (two in this embodiment). is stretched horizontally and fixed. In addition,
An inclined surface 143 forms an abutting portion between this rail 141 and a rail 53 fixed to a base portion 35 provided in the mold set storage portion 31 . (See Figure 3) and
As shown in FIG. 3, the support plate 135 is provided with the hydraulically operated cylinder 59, and a robot hand 63 is attached to the tip of the piston rod 61 of the cylinder 59. A connecting rod 57 provided on the main body 37 of the set storage section can be grasped and detached.

With the above configuration, when storing the mold set storage main body 37 in the mold holding area 27 to the tooling tower 129 side, the empty support plate 135, that is, the mold set storage main body 3
The support plate 135 in which 7 is not assembled is set at a position where the rail 141 provided on the support plate 135 and the rail 53 provided on the base part 35 match so that the mold set storage part body 37 can be stored. Then, the cylinder 139 is actuated to advance the support plate 135 by a certain amount.

As the support plate 135 moves forward, the rail 141 provided on the support plate 135 and the rail 53 provided on the base portion 35 come into close contact with each other on the inclined surface 143, and the LM guide 55 of the mold set storage main body 37 is moved smoothly. It becomes possible to pass.

From this state, the cylinder 59 is operated, the robot hand 63 is made to protrude, and the connecting rod 57 provided in the mold set storage main body 37 is grasped by the robot hand 63. Then,
By operating the cylinder 59 in the opposite direction, the mold set storage main body 3
7 to the support plate 135 side, the cylinder 139 is contracted to separate the rail 141 and the rail 53, and the storage work on the touring tower 129 side is completed.

When mounting the mold set storage main body 37 mounted on the tooling tower 129 to the mold holding area 27, the above-mentioned operation is performed in reverse.

That is, the rotary disk 133 of the tooling tower 129 is rotated, the mold set storage main body 37 containing the desired mold set 29 is directed toward the mold holding area 27, and the cylinder 139 is actuated and installed on the support plate 135. The rail 141 and the rail 53 provided on the base portion 35 are brought into close contact.

Subsequently, the cylinder 59 is operated and the robot hand 63
The mold set storage main body 37 gripped by the mold set storage section 31 is moved along the rails 53, 141, and
at a predetermined position on the base portion 35 of. Then, as described above, positioning is performed using the shot pin 65,
Release the grip of the robot hand 63 to return the cylinder 59 to its old position, actuate the cylinder 139 to widen the space between the rails 53 and 141, and move the mold set storage main body 37.
The installation work for the mold holding area 27 is completed.

Due to the configuration described above, the touring tower 12
A large number of die sets can be stored and exchanged in the turret punch press 1, and even while punching is being performed in the turret punch press 1, mold setup or maintenance can be performed in the tooling tower 129.

FIG. 9 shows another embodiment, in which the mold set storage main body 37 is moved in parallel instead of the system in which the mold set storage main body 37 is rotated and stored as in the tooling tower 129. This is a method of indexing and exchanging. It should be noted that the same parts as in the first embodiment are given the same reference numerals and the description thereof will be omitted.

Storage device 14 that stores a large number of mold set storage main bodies 37
5, a plurality of support plates 147 supporting the mold set storage main body 37 are movable on a plurality of (two in this embodiment) rails 149 extending in the X-axis direction (vertical direction in FIG. 9). It is set in. The support plate 147 is the rail 1
The motor 1 is screwed onto a threaded rod 151 extending parallel to the
53 allows it to move freely on the rail 149.

Then, the desired mold set storage main body 37 is selected and positioned in the mold holding area 27, and mounted by the same means as in the first embodiment, or the mold set storage body 37 in the mold holding area 27 is mounted. The section body 37 can be stored in the storage device 145. By increasing the scale of the storage device 145, a large number of mold set storage main bodies 37 can be stored, so that the same effect as in the first embodiment can be obtained.

It should be noted that the present invention is not limited to the embodiments described above, but can be implemented in other embodiments by making appropriate changes. For example, in this embodiment, the turret 9
In this example, the mold set mounting areas 67 are provided at three locations, and the mold automatic exchange device 71 is provided with four housings 73 serving as mold mounting portions.
This can also be achieved by providing the automatic mold exchange device 71 with at least as many housings 73 as there are mold set mounting areas 67.

Also, the touring tower 129 or the storage device 145
Support plate 1 for storing the mold set storage main body 37 provided in
The number of 35,147 is not limited to this embodiment, and a large number can be provided.

Furthermore, the hydraulic cylinder 59 employed in this embodiment.
139 can be changed to an electric actuator or the like, and the LM guide 41.55 can be changed to a cam follower or the like.

[Effects of the Invention] As can be understood from the explanation of the embodiments described above, according to the present invention, since the structure is as described in the claims, by providing the touring tower etc. By having a large number of molds, it is possible to perform mold setup or maintenance at a tooling tower or the like even during workpiece processing, thereby improving productivity.

[Brief explanation of drawings]

FIG. 1 is a plan view of a turret punch press according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG.
The figure is an enlarged sectional view taken along the line ■-■ in Figure 1.
The figure is an enlarged view of the part shown by the ■ arrow in Fig. 2, Fig. 5 is a right side view in Fig. 4, and Fig. 6 is a Vl-Vl diagram in Fig. 4.
7 is a plan view of FIG. 4, FIG. 8 is an enlarged sectional view taken along line ■-■ in FIG. 1, and FIG. 9 is a turret punch press showing another embodiment. FIG. 10 is a plan view of a conventional turret punch press. 1... Turret punch press 9... Turret 27... Mold holding area 29
... Mold set 31 ... Mold set storage section 71
...Mold automatic exchange device 9...Touring tower 5...Support plate

Claims (1)

[Claims] A turret punch press is equipped with a rotatable turret that supports a large number of molds, a mold holding area for holding a plurality of molds is provided adjacent to the turret, and the molds in this mold holding area are taken out. An automatic mold exchange device for attaching the mold to the turret is provided so as to be able to reciprocate between a position corresponding to the mold holding area and a position corresponding to the turret, and a plurality of automatic mold changing devices are provided adjacent to the mold holding area. A turret punch press characterized in that a tooling tower is provided with a storage section, and a mold set storage section attached to the mold holding area is provided in the tooling tower so that it can be stored or exchanged.